Home / 100,292.83-138,419.35-64,009.94

Finding the Fourth Proportional to 100,292.83, 138,419.35 and 64,009.94

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Solution

The fourth proportional to 100,292.83, 138,419.35 and 64,009.94 is: 88,343.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,292.83 : 138,419.35 = 64,009.94 : x
  2. Step 2: Convert to fraction form
    100,292.83/138,419.35 = 64,009.94/x
  3. Step 3: Cross multiply
    100,292.83x = 138,419.35 × 64,009.94
  4. Step 4: Simplify right side
    100,292.83x = 8,860,213,436.22
  5. Step 5: Solve for x
    x = 8,860,213,436.22/100,292.83
  6. Step 6: Final answer
    x = 88,343.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.